Fifths to george l



(No Model.)

H. F. HANNIS.

' OAR VENTILATOR. v No. 439,065. Patented Oct. 21,1890.

All" j WITNESSES UNTTED STATES PATENT OFFICE,

HENRY F. HANNIS, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF TWO- FIFTHS TO GEORGE L. PFOUTS, OF SAME PLACE.

CAR-VENTI LATO R.

SPECIFICATION forming part of Letters Patent No. 439,065, dated October 21, 1890.

Application filed May 8, 1890. Serial No. 351,046. (No model.)

.said mechanism.

It also consists of means whereby either of the ventilators may be disconnected from the operating mechanism, so as to be permitted to remain closed.

It also consists of the combination of parts hereinafter set forth.

Figures 1, 2, and 6 represent views of portions of the frame of a car with ventilators embodying my invention applied thereto. Fig. 3 represents a view of two adjacent ventilators with closing-springs applied thereto. Fig. 4 represents a sectional view of one of the operating-arms on an enlarged scale. Fig. 5 represents side views of one of the operatinglinks, the parts being separated and shown on an enlarged scale.

Similar letters of reference indicate corresponding parts in the several figures.

Referring to the drawings, A designates a portion of the frame of a railway-car having the ventilating-openings therein. Secured to the inner face of said portion are bearings O for the rock-shaft D, which carries the bevelpinion E, meshing with which is the bevelpinion F, the latter being connected with a shaft G, whose bearings H are attached to the frame of the car.

K and L designate the ventilators proper, the same being in two sets of the form of shutters which open in opposite directions, as usual in such cases.

Freely secured to the ventilators K L are links M, the links of the ventilators K being jointed to arms N, which are connected with the shaft D by screws P or other suitable means. The links of the ventilators L are jointed to arms Q, which are provided with collars R, which freely encircle the shaft D, and are formed with slots S to receive pins or studs T, the latter being secured to the shaft D, by which means when the shaft is rotated a certain extent the pins T strike the end walls of the slots S, and thus impart motion to the arms Q.

In order to disconnect the ventilators from the shaft D, the link M is constructed of two parts U V, the parts U being tubular, so as to receive the stems of the parts V, said stems being removably held in said tubular parts by means of screws W, which pass through said parts and have their points engage the necks X of said stems.

The operation is as follows: When the shaft D is partially rotated, the arms N follow the motion thereof, whereby the ventilators K are opened. The arms Q remain at rest, so that the ventilators L are not disturbed. (See Fig. 2.) By further rotation of the shaft the arms are carried around to a greater extent, .whereby the ventilators K are drawn in, and consequently closed. The pins T have, however, come in contact with the walls of the slots S, so that motion is imparted to the arms Q,,thus throwing out and opening the ventilators L. (See Fig. 6.) The closing motion of the ventilators K is assisted by springs A, which bear against the backs of said ventilators, the ventilators L having also bearing against them the springs B. It is evident that by reversing the direction of rotation of the shaft the ventilators K may be opened, and as the ventilators L are then controlled by the springs B, the arms Q being loose or free on the shaft D, as has been stated, said ventilatorsL are returned to their closed position. By continuing the rotation of the shaft the arms N are operated, so as to draw in the ventilators K, whereby both sets of ventilators are closed. The shaft may be conveniently operated by the hand-wheel Z on the shaft G or the lever Y, secured to said shaft.

When it is desired to disconnect either ventilator from the shaft D, so that the same may be closed without aifecting the operation of the other ventilators, the parts of the r00 link M are separated by releasing the screw W, and then by properly manipulating said link or its connected ventilator the part V may be withdrawn from the part U, when it will hang freely or inoperative, as shown in Fig. 5. The parts of the link may be restored to their normal condition, when desired, so that the ventilator may again be operated by the rotation of the shaft.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. Two sets of ventilators alternately arranged and extending when closed in the same direction, a rock-shaft parallel with said ventilators, links connected with each of said ventilators, and mechanism connected with said links and shafts for opening and closing said ventilators, said parts being combined substantially as described.

2. A frame with an opening therein, a ventilator hinged to said frame, a rotary shaft with an arm secured thereon, and a link detachably connected with said arm and ventilator, said parts being combined substantially as described.

3. A frame with an opening therein,a ventilator hinged to said frame, a rock-shaft with a projecting pin, an arm with an attachingcollar havinga slot therein receiving said pin, and a link connected with said collar and ventilator, said parts being combined substantially as described.

4. The combination of a frame with open ings therein, hinged ventilators adapted to close said openings, one set of said ventilators opening in opposite direction from the other, a rotary shaft, and arms movably and rigidly mounted on saidshaft in alternation, having linked connections with said ventilators and adapted to open and close the same, substantially as described.

5. A ventilating device consisting of two sets of ventilators opening in opposite directions and a horizontal shaft, with arms loosely mounted on said shaft and connected with links attached to one set of the ventilators and arms fastened on said shaft and connected with the links of the other set of ventilators for opening separate sets of said ventilators at different times and simultaneously closing one of said sets at the time of opening the other and unitedly closing both sets, substantially as described.

6. A ventilating device consisting of aframe with openings therein, ventilators hinged to said frame, a shaft having arms thereon, links pivotally connecting said arms with the ventilators, and pins connected with said shaft, a part of said arms being slotted to receive said pins and loosely mounted on said shaft and the other arms being fastened to said shaft, said parts being combined substantially as described.

7. A ventilating device consisting of a frame with openings therein, ventilators hinged to said frame, a set of said ventilators being adapted to open in an opposite direction from the other set thereof, springs for closing said ventilators, and a horizontal shaft having arms alternately loosely and rigidly mounted thereon and connected with said ventilators for first opening those of one set which open in the one direction and then opening those of the other set and finally closing the firstnamed set, said parts being combined substantially as described.

8. A ventilating device consisting of a frame with openings therein, two sets of ventilators hinged to said frame, a set of said ventilators opening in one direction and the other set opening in the opposite direction, a shaft, arms connected with said shaft and connected with said set of ventilators, arms having slots therein loosely mounted on said shaft and connected with the remaining ventilators, and pins or studs connected with the shaft and projecting in said slots, said parts beingconi bined substantially as described.

9. The combination of a hinged ventilator, a rotary shaft, an arm mounted thereon and rotatable therewith, and a sectional link connected with said ventilator and arm, said parts being combined substantially as described.

10. The combination of a movable ventila-- tor, a rotary shaft, an arm on said shaft, anda link connected with said ventilator and arm, said link consisting of parts detachably connected, substantially as and for the purpose set forth.

HENRY F. HANNIS.

\Vitnesses:

JOHN A. WIEDERSHEIM, A. P. JENNINGS. 

